Join the friendly competition – workplace against workplace – during the 2015 Bike to Work Challenge that begins May 1. The annual challenge enables employees to register and track their miles online to see who can bike to work more during the month of May. New this year: Participants can share and view commuting pictures and stories on Twitter, Facebook and Instagram using the #biketoworkDSM hashtag. The challenge is one of several the Healthiest State Initiative is promoting to encourage bicycling as a low-impact, environmentally friendly way to stay healthy. For ideas on destination rides to take during May, check out this link at BIKEIOWA.com.